java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/HOLA/30.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:53:01,623 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:53:01,629 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:53:01,645 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:53:01,646 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:53:01,647 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:53:01,648 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:53:01,653 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:53:01,655 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:53:01,655 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:53:01,658 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:53:01,659 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:53:01,659 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:53:01,661 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:53:01,661 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:53:01,664 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:53:01,666 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:53:01,667 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:53:01,681 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:53:01,682 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:53:01,682 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:53:01,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:53:01,685 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:53:01,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:53:01,686 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:53:01,687 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:53:01,687 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:53:01,693 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:53:01,694 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:53:01,695 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:53:01,695 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:53:01,696 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:53:01,696 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:53:01,697 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:53:01,697 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:53:01,697 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 10:53:01,721 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:53:01,721 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:53:01,721 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:53:01,722 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:53:01,722 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:53:01,723 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:53:01,723 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:53:01,723 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:53:01,723 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:53:01,723 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:53:01,724 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:53:01,724 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:53:01,724 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:53:01,724 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:53:01,724 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:53:01,724 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:53:01,725 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:53:01,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:53:01,726 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:53:01,727 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:53:01,727 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:53:01,772 INFO ]: Repository-Root is: /tmp [2018-06-22 10:53:01,787 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:53:01,795 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:53:01,796 INFO ]: Initializing SmtParser... [2018-06-22 10:53:01,796 INFO ]: SmtParser initialized [2018-06-22 10:53:01,797 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/30.c.smt2 [2018-06-22 10:53:01,799 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 10:53:01,886 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/30.c.smt2 unknown [2018-06-22 10:53:02,113 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/30.c.smt2 [2018-06-22 10:53:02,118 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:53:02,125 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:53:02,125 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:53:02,125 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:53:02,125 INFO ]: ChcToBoogie initialized [2018-06-22 10:53:02,134 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:53:02" (1/1) ... [2018-06-22 10:53:02,196 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02 Unit [2018-06-22 10:53:02,196 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:53:02,197 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:53:02,197 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:53:02,197 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:53:02,237 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (1/1) ... [2018-06-22 10:53:02,237 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (1/1) ... [2018-06-22 10:53:02,254 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (1/1) ... [2018-06-22 10:53:02,254 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (1/1) ... [2018-06-22 10:53:02,257 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (1/1) ... [2018-06-22 10:53:02,268 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (1/1) ... [2018-06-22 10:53:02,269 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (1/1) ... [2018-06-22 10:53:02,270 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:53:02,271 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:53:02,271 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:53:02,271 INFO ]: RCFGBuilder initialized [2018-06-22 10:53:02,272 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 10:53:02,289 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:53:02,289 INFO ]: Found specification of procedure False [2018-06-22 10:53:02,289 INFO ]: Found implementation of procedure False [2018-06-22 10:53:02,289 INFO ]: Specification and implementation of procedure h13 given in one single declaration [2018-06-22 10:53:02,289 INFO ]: Found specification of procedure h13 [2018-06-22 10:53:02,289 INFO ]: Found implementation of procedure h13 [2018-06-22 10:53:02,289 INFO ]: Specification and implementation of procedure h12 given in one single declaration [2018-06-22 10:53:02,289 INFO ]: Found specification of procedure h12 [2018-06-22 10:53:02,289 INFO ]: Found implementation of procedure h12 [2018-06-22 10:53:02,289 INFO ]: Specification and implementation of procedure h11 given in one single declaration [2018-06-22 10:53:02,289 INFO ]: Found specification of procedure h11 [2018-06-22 10:53:02,289 INFO ]: Found implementation of procedure h11 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h10 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h10 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h10 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h9 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h9 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h9 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h6 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h6 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h6 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h5 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h5 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h5 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h4 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h4 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h4 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h3 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h3 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h3 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h2 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h2 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h2 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h1 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h1 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h1 [2018-06-22 10:53:02,290 INFO ]: Specification and implementation of procedure h8 given in one single declaration [2018-06-22 10:53:02,290 INFO ]: Found specification of procedure h8 [2018-06-22 10:53:02,290 INFO ]: Found implementation of procedure h8 [2018-06-22 10:53:02,291 INFO ]: Specification and implementation of procedure h7 given in one single declaration [2018-06-22 10:53:02,291 INFO ]: Found specification of procedure h7 [2018-06-22 10:53:02,291 INFO ]: Found implementation of procedure h7 [2018-06-22 10:53:02,291 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:53:02,291 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:53:02,291 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:53:02,491 INFO ]: Using library mode [2018-06-22 10:53:02,491 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:53:02 BoogieIcfgContainer [2018-06-22 10:53:02,491 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:53:02,493 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:53:02,493 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:53:02,496 INFO ]: TraceAbstraction initialized [2018-06-22 10:53:02,496 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:53:02" (1/3) ... [2018-06-22 10:53:02,497 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d52ded6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:53:02, skipping insertion in model container [2018-06-22 10:53:02,497 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:53:02" (2/3) ... [2018-06-22 10:53:02,497 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d52ded6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:53:02, skipping insertion in model container [2018-06-22 10:53:02,497 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:53:02" (3/3) ... [2018-06-22 10:53:02,499 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:53:02,507 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:53:02,518 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:53:02,568 INFO ]: Using default assertion order modulation [2018-06-22 10:53:02,569 INFO ]: Interprodecural is true [2018-06-22 10:53:02,569 INFO ]: Hoare is false [2018-06-22 10:53:02,569 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:53:02,569 INFO ]: Backedges is TWOTRACK [2018-06-22 10:53:02,569 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:53:02,569 INFO ]: Difference is false [2018-06-22 10:53:02,569 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:53:02,569 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:53:02,596 INFO ]: Start isEmpty. Operand 61 states. [2018-06-22 10:53:02,620 INFO ]: Finished isEmpty. Found accepting run of length 50 [2018-06-22 10:53:02,620 INFO ]: Found error trace [2018-06-22 10:53:02,621 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:53:02,621 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:53:02,627 INFO ]: Analyzing trace with hash -1184170914, now seen corresponding path program 1 times [2018-06-22 10:53:02,629 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:53:02,630 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:53:02,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:02,662 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:53:02,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:02,716 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:03,082 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:53:03,085 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:53:03,085 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 10:53:03,087 INFO ]: Interpolant automaton has 8 states [2018-06-22 10:53:03,099 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 10:53:03,099 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 10:53:03,102 INFO ]: Start difference. First operand 61 states. Second operand 8 states. [2018-06-22 10:53:03,284 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:53:03,284 INFO ]: Finished difference Result 63 states and 64 transitions. [2018-06-22 10:53:03,284 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 10:53:03,285 INFO ]: Start accepts. Automaton has 8 states. Word has length 49 [2018-06-22 10:53:03,286 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:53:03,301 INFO ]: With dead ends: 63 [2018-06-22 10:53:03,301 INFO ]: Without dead ends: 63 [2018-06-22 10:53:03,302 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 10:53:03,316 INFO ]: Start minimizeSevpa. Operand 63 states. [2018-06-22 10:53:03,346 INFO ]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-06-22 10:53:03,348 INFO ]: Start removeUnreachable. Operand 63 states. [2018-06-22 10:53:03,349 INFO ]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2018-06-22 10:53:03,351 INFO ]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 49 [2018-06-22 10:53:03,351 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:53:03,352 INFO ]: Abstraction has 63 states and 64 transitions. [2018-06-22 10:53:03,352 INFO ]: Interpolant automaton has 8 states. [2018-06-22 10:53:03,352 INFO ]: Start isEmpty. Operand 63 states and 64 transitions. [2018-06-22 10:53:03,356 INFO ]: Finished isEmpty. Found accepting run of length 66 [2018-06-22 10:53:03,356 INFO ]: Found error trace [2018-06-22 10:53:03,357 INFO ]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:53:03,357 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:53:03,357 INFO ]: Analyzing trace with hash 1011097731, now seen corresponding path program 1 times [2018-06-22 10:53:03,357 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:53:03,357 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:53:03,358 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:03,358 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:53:03,358 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:03,392 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:03,782 INFO ]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:53:03,782 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:53:03,782 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:53:03,796 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:53:03,857 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:03,870 INFO ]: Computing forward predicates... [2018-06-22 10:53:03,940 INFO ]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:53:03,974 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:53:03,974 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2018-06-22 10:53:03,975 INFO ]: Interpolant automaton has 13 states [2018-06-22 10:53:03,975 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 10:53:03,975 INFO ]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-06-22 10:53:03,976 INFO ]: Start difference. First operand 63 states and 64 transitions. Second operand 13 states. [2018-06-22 10:53:04,660 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:53:04,660 INFO ]: Finished difference Result 71 states and 72 transitions. [2018-06-22 10:53:04,662 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-22 10:53:04,662 INFO ]: Start accepts. Automaton has 13 states. Word has length 65 [2018-06-22 10:53:04,662 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:53:04,663 INFO ]: With dead ends: 71 [2018-06-22 10:53:04,663 INFO ]: Without dead ends: 71 [2018-06-22 10:53:04,664 INFO ]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:53:04,665 INFO ]: Start minimizeSevpa. Operand 71 states. [2018-06-22 10:53:04,676 INFO ]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-06-22 10:53:04,676 INFO ]: Start removeUnreachable. Operand 71 states. [2018-06-22 10:53:04,677 INFO ]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2018-06-22 10:53:04,678 INFO ]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 65 [2018-06-22 10:53:04,681 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:53:04,681 INFO ]: Abstraction has 71 states and 72 transitions. [2018-06-22 10:53:04,681 INFO ]: Interpolant automaton has 13 states. [2018-06-22 10:53:04,681 INFO ]: Start isEmpty. Operand 71 states and 72 transitions. [2018-06-22 10:53:04,682 INFO ]: Finished isEmpty. Found accepting run of length 82 [2018-06-22 10:53:04,682 INFO ]: Found error trace [2018-06-22 10:53:04,683 INFO ]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:53:04,683 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:53:04,683 INFO ]: Analyzing trace with hash 921047464, now seen corresponding path program 2 times [2018-06-22 10:53:04,683 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:53:04,683 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:53:04,685 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:04,685 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:53:04,685 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:04,732 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:05,059 INFO ]: Checked inductivity of 30 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:53:05,059 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:53:05,059 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:53:05,065 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 10:53:05,133 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 10:53:05,133 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:05,140 INFO ]: Computing forward predicates... [2018-06-22 10:53:05,177 INFO ]: Checked inductivity of 30 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:53:05,197 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:53:05,197 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2018-06-22 10:53:05,198 INFO ]: Interpolant automaton has 17 states [2018-06-22 10:53:05,198 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 10:53:05,198 INFO ]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2018-06-22 10:53:05,198 INFO ]: Start difference. First operand 71 states and 72 transitions. Second operand 17 states. [2018-06-22 10:53:05,610 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:53:05,610 INFO ]: Finished difference Result 79 states and 80 transitions. [2018-06-22 10:53:05,615 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-06-22 10:53:05,615 INFO ]: Start accepts. Automaton has 17 states. Word has length 81 [2018-06-22 10:53:05,616 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:53:05,617 INFO ]: With dead ends: 79 [2018-06-22 10:53:05,617 INFO ]: Without dead ends: 79 [2018-06-22 10:53:05,618 INFO ]: 0 DeclaredPredicates, 100 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2018-06-22 10:53:05,618 INFO ]: Start minimizeSevpa. Operand 79 states. [2018-06-22 10:53:05,630 INFO ]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-06-22 10:53:05,630 INFO ]: Start removeUnreachable. Operand 79 states. [2018-06-22 10:53:05,631 INFO ]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2018-06-22 10:53:05,631 INFO ]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 81 [2018-06-22 10:53:05,632 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:53:05,632 INFO ]: Abstraction has 79 states and 80 transitions. [2018-06-22 10:53:05,632 INFO ]: Interpolant automaton has 17 states. [2018-06-22 10:53:05,632 INFO ]: Start isEmpty. Operand 79 states and 80 transitions. [2018-06-22 10:53:05,634 INFO ]: Finished isEmpty. Found accepting run of length 98 [2018-06-22 10:53:05,634 INFO ]: Found error trace [2018-06-22 10:53:05,634 INFO ]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:53:05,635 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:53:05,635 INFO ]: Analyzing trace with hash 1483722701, now seen corresponding path program 3 times [2018-06-22 10:53:05,635 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:53:05,635 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:53:05,636 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:05,636 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 10:53:05,636 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:05,681 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:05,946 INFO ]: Checked inductivity of 69 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-06-22 10:53:05,946 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:53:05,946 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:53:05,955 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 10:53:06,055 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 10:53:06,055 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:06,063 INFO ]: Computing forward predicates... [2018-06-22 10:53:06,107 INFO ]: Checked inductivity of 69 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-06-22 10:53:06,139 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:53:06,139 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2018-06-22 10:53:06,140 INFO ]: Interpolant automaton has 21 states [2018-06-22 10:53:06,140 INFO ]: Constructing interpolant automaton starting with 21 interpolants. [2018-06-22 10:53:06,140 INFO ]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2018-06-22 10:53:06,140 INFO ]: Start difference. First operand 79 states and 80 transitions. Second operand 21 states. [2018-06-22 10:53:06,403 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:53:06,404 INFO ]: Finished difference Result 87 states and 88 transitions. [2018-06-22 10:53:06,405 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-06-22 10:53:06,405 INFO ]: Start accepts. Automaton has 21 states. Word has length 97 [2018-06-22 10:53:06,406 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:53:06,407 INFO ]: With dead ends: 87 [2018-06-22 10:53:06,407 INFO ]: Without dead ends: 87 [2018-06-22 10:53:06,408 INFO ]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2018-06-22 10:53:06,408 INFO ]: Start minimizeSevpa. Operand 87 states. [2018-06-22 10:53:06,416 INFO ]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-06-22 10:53:06,416 INFO ]: Start removeUnreachable. Operand 87 states. [2018-06-22 10:53:06,419 INFO ]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2018-06-22 10:53:06,419 INFO ]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 97 [2018-06-22 10:53:06,420 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:53:06,420 INFO ]: Abstraction has 87 states and 88 transitions. [2018-06-22 10:53:06,420 INFO ]: Interpolant automaton has 21 states. [2018-06-22 10:53:06,420 INFO ]: Start isEmpty. Operand 87 states and 88 transitions. [2018-06-22 10:53:06,422 INFO ]: Finished isEmpty. Found accepting run of length 114 [2018-06-22 10:53:06,422 INFO ]: Found error trace [2018-06-22 10:53:06,422 INFO ]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:53:06,422 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:53:06,422 INFO ]: Analyzing trace with hash -922723598, now seen corresponding path program 4 times [2018-06-22 10:53:06,422 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:53:06,422 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:53:06,423 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:06,423 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 10:53:06,423 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:53:06,446 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:06,805 INFO ]: Checked inductivity of 124 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-06-22 10:53:06,805 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:53:06,817 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:53:06,823 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 10:53:06,889 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 10:53:06,889 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:53:06,905 INFO ]: Computing forward predicates... [2018-06-22 10:53:08,207 INFO ]: Checked inductivity of 124 backedges. 45 proven. 22 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-06-22 10:53:08,230 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:53:08,230 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 30] total 53 [2018-06-22 10:53:08,231 INFO ]: Interpolant automaton has 53 states [2018-06-22 10:53:08,231 INFO ]: Constructing interpolant automaton starting with 53 interpolants. [2018-06-22 10:53:08,232 INFO ]: CoverageRelationStatistics Valid=157, Invalid=2599, Unknown=0, NotChecked=0, Total=2756 [2018-06-22 10:53:08,233 INFO ]: Start difference. First operand 87 states and 88 transitions. Second operand 53 states. [2018-06-22 10:53:09,711 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:53:09,712 INFO ]: Finished difference Result 89 states and 90 transitions. [2018-06-22 10:53:09,712 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-06-22 10:53:09,712 INFO ]: Start accepts. Automaton has 53 states. Word has length 113 [2018-06-22 10:53:09,713 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:53:09,713 INFO ]: With dead ends: 89 [2018-06-22 10:53:09,713 INFO ]: Without dead ends: 0 [2018-06-22 10:53:09,715 INFO ]: 0 DeclaredPredicates, 166 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=357, Invalid=5805, Unknown=0, NotChecked=0, Total=6162 [2018-06-22 10:53:09,715 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 10:53:09,715 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 10:53:09,715 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 10:53:09,715 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 10:53:09,716 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2018-06-22 10:53:09,716 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:53:09,716 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 10:53:09,716 INFO ]: Interpolant automaton has 53 states. [2018-06-22 10:53:09,716 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 10:53:09,716 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 10:53:09,721 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:53:09 BoogieIcfgContainer [2018-06-22 10:53:09,721 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:53:09,722 INFO ]: Toolchain (without parser) took 7603.47 ms. Allocated memory was 306.2 MB in the beginning and 428.3 MB in the end (delta: 122.2 MB). Free memory was 257.6 MB in the beginning and 289.4 MB in the end (delta: -31.9 MB). Peak memory consumption was 90.3 MB. Max. memory is 3.6 GB. [2018-06-22 10:53:09,723 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:53:09,724 INFO ]: ChcToBoogie took 71.30 ms. Allocated memory is still 306.2 MB. Free memory was 257.6 MB in the beginning and 255.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:53:09,724 INFO ]: Boogie Preprocessor took 73.57 ms. Allocated memory is still 306.2 MB. Free memory was 255.6 MB in the beginning and 254.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 10:53:09,725 INFO ]: RCFGBuilder took 220.38 ms. Allocated memory is still 306.2 MB. Free memory was 253.6 MB in the beginning and 241.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:53:09,725 INFO ]: TraceAbstraction took 7228.20 ms. Allocated memory was 306.2 MB in the beginning and 428.3 MB in the end (delta: 122.2 MB). Free memory was 241.6 MB in the beginning and 289.4 MB in the end (delta: -47.9 MB). Peak memory consumption was 74.3 MB. Max. memory is 3.6 GB. [2018-06-22 10:53:09,728 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 71.30 ms. Allocated memory is still 306.2 MB. Free memory was 257.6 MB in the beginning and 255.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 73.57 ms. Allocated memory is still 306.2 MB. Free memory was 255.6 MB in the beginning and 254.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 220.38 ms. Allocated memory is still 306.2 MB. Free memory was 253.6 MB in the beginning and 241.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 7228.20 ms. Allocated memory was 306.2 MB in the beginning and 428.3 MB in the end (delta: 122.2 MB). Free memory was 241.6 MB in the beginning and 289.4 MB in the end (delta: -47.9 MB). Peak memory consumption was 74.3 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 61 locations, 1 error locations. SAFE Result, 7.1s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 267 SDtfs, 24 SDslu, 4592 SDs, 0 SdLazy, 1462 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 475 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1245 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 761 NumberOfCodeBlocks, 756 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 752 ConstructedInterpolants, 0 QuantifiedInterpolants, 145488 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1521 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 262/460 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/30.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-53-09-738.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/30.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-53-09-738.csv Received shutdown request...